Trump's Ukraine Delusion, Tesla's Ford Showdown, and More News

Trump's Ukraine Delusion, Tesla's Ford Showdown, and More News

Trump is spouting while Ford and Tesla are shouting, but first: a cartoon about when data collection gets personal .Here's the news you need to know, in two minutes or less.

Tesla Cybertruck Vs. a Ford F-150: It's All About Friction

Tesla Cybertruck Vs. a Ford F-150: It's All About Friction

Now it's this video of a tug-of-war between the Cybertruck and a Ford F-150 .It's all about friction and the interaction between the tires and the road.The Tesla Cybertruck, with its steel outer shell, is probably more massive than a Ford F-150.Let's be clear.

An Electric Pickup Truck Really Could Pull a Freight Train—Here's How

An Electric Pickup Truck Really Could Pull a Freight Train—Here's How

Here is a force diagram for a tiny object pulling a massive object with no friction. For the train (object B), a frictional force is pulling to the right.

Estimate the Pulling Force of Boston Dynamics' Robo-Dog Army

Estimate the Pulling Force of Boston Dynamics' Robo-Dog Army

That's pretty close to the estimated friction from the robot dogs (maybe my values for the coefficients are off).What about pulling a truck uphill? They also have a decrease in the frictional force needed to pull the truck up the incline.

Estimate the Friction Coefficient in That Massive Nascar Pile-Up

Estimate the Friction Coefficient in That Massive Nascar Pile-Up

All I need is to determine the acceleration of a sliding car and I can get a value for the coefficient of kinetic friction between the tire and the road.